component

BSR58

Public Made by Adom

by adom

onsemi JFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

BSR58

onsemi · JFETs · SOT-23

BSR58 from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Drain passive Drain terminal; maximum drain-gate voltage 40V, zero-gate drain current 8-80mA at VDS=15V VGS=0V, on-state drain-source voltage 0.4V typ at ID=5mA.
2 Source passive Source terminal; provides return path for drain current and serves as reference electrode for gate-source voltage measurements.
3 Gate input Gate control terminal; gate-source voltage ±40V maximum, gate-source cut-off voltage 0.8-4V at VDS=15V ID=0.5nA, maximum forward gate current 50mA.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Drain-Gate Voltage VDGO 40 V 2
Gate-Source Voltage VGSO -40 V 2
Forward Gate Current IGF 50 mA 2
Total Power Dissipation Ptot 250 mW up to Tamb=40°C 2
Storage Temperature Range TSTG -55 150 °C 2
Junction Temperature TJ 150 °C 2
Gate-Source Voltage BVGSS 40 V VDS = 0V, IC = 1µA 2
Gate Reverse Current IGSS 1 nA VGS = 20V 2
Zero-Gate Voltage Drain Current IDSS 8 80 mA VDS = 15V, VGS = 0V 2
Gate-Source Cut-off Voltage VGS(off) 0.8 4 V VDS = 15V, ID = 0.5nA 2
Drain-Source On Voltage VDS(on) 0.4 V VGS = 0V, ID = 5mA 2
Drain-Source On Reverse rds(on) 60 Ω VGS = 0V, ID = 0 2
Reverse Transfer Capacitance Crss 5 pF VDS = 0V, VGS = 10V 2
Delay Time td 10 nS VDD = 10V, VGS(on) = 0V, ID = 10mA, VGS(off) = 10V 2
Rise Time tr 10 nS 2
Turn-off Time toff 100 nS 2

CAD (KiCad official)

  • Symbol: BSR58
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bsr58-etched.step / bsr58-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bsr58.step / bsr58.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (5 pp, sha256 1b2654931ab27882, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF